DE3938303A1 - Ton-zwischenfrequenzfilterkreis fuer mehrsystem-fernsehempfaenger - Google Patents

Ton-zwischenfrequenzfilterkreis fuer mehrsystem-fernsehempfaenger

Info

Publication number
DE3938303A1
DE3938303A1 DE3938303A DE3938303A DE3938303A1 DE 3938303 A1 DE3938303 A1 DE 3938303A1 DE 3938303 A DE3938303 A DE 3938303A DE 3938303 A DE3938303 A DE 3938303A DE 3938303 A1 DE3938303 A1 DE 3938303A1
Authority
DE
Germany
Prior art keywords
sawtooth
filter
audio
tone
diodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE3938303A
Other languages
German (de)
English (en)
Other versions
DE3938303C2 (enrdf_load_stackoverflow
Inventor
Young Jun Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
Gold Star Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gold Star Co Ltd filed Critical Gold Star Co Ltd
Publication of DE3938303A1 publication Critical patent/DE3938303A1/de
Application granted granted Critical
Publication of DE3938303C2 publication Critical patent/DE3938303C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Networks Using Active Elements (AREA)
DE3938303A 1988-11-22 1989-11-17 Ton-zwischenfrequenzfilterkreis fuer mehrsystem-fernsehempfaenger Granted DE3938303A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR880018917 1988-11-22

Publications (2)

Publication Number Publication Date
DE3938303A1 true DE3938303A1 (de) 1990-05-23
DE3938303C2 DE3938303C2 (enrdf_load_stackoverflow) 1992-12-24

Family

ID=19281519

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3938303A Granted DE3938303A1 (de) 1988-11-22 1989-11-17 Ton-zwischenfrequenzfilterkreis fuer mehrsystem-fernsehempfaenger

Country Status (6)

Country Link
DE (1) DE3938303A1 (enrdf_load_stackoverflow)
ES (1) ES2017569A6 (enrdf_load_stackoverflow)
GB (1) GB2225681B (enrdf_load_stackoverflow)
HU (1) HU206173B (enrdf_load_stackoverflow)
IT (2) IT1237577B (enrdf_load_stackoverflow)
RU (1) RU1833515C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0626786A1 (de) * 1993-05-24 1994-11-30 Deutsche Thomson-Brandt Gmbh Schaltung zur Tonnorm-Erkennung in einem Fernsehempfänger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204172A1 (de) * 1981-02-11 1982-08-19 Salora Oy, 24100 Salo Fernsehempfaenger-schaltung zur demodulation von nach verschiedenen sendenormen ausgestrahlten tonsignalen
DE3338993C2 (de) * 1982-10-29 1986-12-04 Rca Corp., New York, N.Y. Anordnung zur Demodulation des Fernsehtons

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858118A (en) * 1973-07-17 1974-12-31 Westinghouse Electric Corp Acoustic surface wave television tuner
DE3509516C1 (de) * 1985-03-16 1986-09-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung der Eingangsstufen eines Fernsehtuners

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204172A1 (de) * 1981-02-11 1982-08-19 Salora Oy, 24100 Salo Fernsehempfaenger-schaltung zur demodulation von nach verschiedenen sendenormen ausgestrahlten tonsignalen
DE3338993C2 (de) * 1982-10-29 1986-12-04 Rca Corp., New York, N.Y. Anordnung zur Demodulation des Fernsehtons

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Bedienungshandbuch für Goldstar-Farbfernseh- gerät CNR-2802, S.30-32,35,36, 15. Sept. 1987 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0626786A1 (de) * 1993-05-24 1994-11-30 Deutsche Thomson-Brandt Gmbh Schaltung zur Tonnorm-Erkennung in einem Fernsehempfänger

Also Published As

Publication number Publication date
RU1833515C (en) 1993-08-07
DE3938303C2 (enrdf_load_stackoverflow) 1992-12-24
IT8934897V0 (it) 1989-11-21
GB2225681A (en) 1990-06-06
HUT55179A (en) 1991-04-29
IT1237577B (it) 1993-06-08
GB8926168D0 (en) 1990-01-10
IT8946886A1 (it) 1991-05-21
HU895954D0 (en) 1990-02-28
IT8946886A0 (it) 1989-11-21
ES2017569A6 (es) 1991-02-16
GB2225681B (en) 1993-04-14
HU206173B (en) 1992-08-28

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee